Vacuum cleaner



FIG. 1 is a perspective view of a vacuum cleaner showing my new design;

FIG. 2 is a front view thereof,

FIG. 3 is a left side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of the hose attachment region, features on the bottom surface and the trapezoidal region on the rear surface is for environmental purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 